The home of photovoltaic experts who speak your language.

Solar energy is the future. Solar energy is our passion. That's why we invest all our resources in technologies that help to enhance the smooth production of solar cells and modules worldwide.

As the owner-managed market leader with over 20 years of experience in PV measurement technology, we have a well-deserved reputation for providing straightforward advice and workable solutions for our customers when it comes to the characterization of photovoltaic samples.

Our relentless focus on sustainable and upgradeable quality products is the foundation for our many long-standing business partnerships on all continents, and our contribution to a clean, low-carbon future for us all.

we have already installed over 250 GW production cell testers worldwide

high-end photovoltaic performance testing

halm modular-based IV testers and characterization systems offer our clients maximum flexibility and unlimited upgradeability. Our sophisticated software options allow you to …

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made in germany for the entire world

From our base in Frankfurt, we design, build and ship PV measurement technology globally. Founded in 1981 by four scientists, the company places great value on excellent support ...

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where the ambitious find their home away from home

We're very proud of our low staff turnover, and do all we can to keep it that way. With modern, internationally oriented workplaces, a great atmosphere and flat hierarchies …

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